MITOSIS AND MEIOSIS           BY:      ASHLEY BULLER
Mitosis Is nuclear division and cyotkinesis. Produces two daughter cells.
ProphaseChromosomes arecoiled together.•Each duplication ofchromosomes are a pairof sister chromatids.•Nucleolus disappea...
Metapha   seNuclear membranecompletely disappears.Polar fiber extendcontinually from polesto the center of the cell.Chromo...
Anaphas    ePaired centromerer ineach chromosomemoves apart.When they separatethey are now onechromosome, calleddaughter c...
Telophase   Chromosomes are    cordoned off into new    nuclei in the daughter    cells. Polar fibers are  lengthening....
Cytokinesis When the cytoplasm  starts to divide. Divides two new nuclei  into daughter cells.
Meiosis   Meiosis 1:       Chromosomes in a        diploid cell resegregate.       Produces four haploid        daughte...
Prophase 1 and 2       Prophase 1: Chromosomes become  visible. Combine to form  tetrads.       Contain two pairs of   ...
Metaphase 1 and 2      Metaphase 1: Trends are arranged  across the center by the  kinetochores.      Metaphase 2: Chrom...
Anaphase 1 and 2        Anaphase 1: Chromatids holding the  chromosomes together  loosens. Homologous chromatids  are se...
Telophase 1 and 2       Telophase 1: Chromosomes are moved  into opposite poles. Nuclear envelope  reforms. Spindle is ...
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Mitosis and meiosis ashley

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Mitosis and meiosis ashley

  1. 1. MITOSIS AND MEIOSIS BY: ASHLEY BULLER
  2. 2. Mitosis Is nuclear division and cyotkinesis. Produces two daughter cells.
  3. 3. ProphaseChromosomes arecoiled together.•Each duplication ofchromosomes are a pairof sister chromatids.•Nucleolus disappears.
  4. 4. Metapha seNuclear membranecompletely disappears.Polar fiber extendcontinually from polesto the center of the cell.Chromosomes moverandomly until theyattach to the pole fibers.Chromosomes are thenaligned with the plate atright angles to thespindle poles.
  5. 5. Anaphas ePaired centromerer ineach chromosomemoves apart.When they separatethey are now onechromosome, calleddaughter cells.Daughter chromosomesmove to opposite endsof the pole.The chromosomesmigrate first to theCentro mere
  6. 6. Telophase Chromosomes are cordoned off into new nuclei in the daughter cells. Polar fibers are lengthening. Nucleus begin to form from opposite poles. Nuclear envelopes are formed from remaining pieces of the parent cell’s nuclear envelope. Chromatin fibers of chromosomes uncoil.
  7. 7. Cytokinesis When the cytoplasm starts to divide. Divides two new nuclei into daughter cells.
  8. 8. Meiosis Meiosis 1:  Chromosomes in a diploid cell resegregate.  Produces four haploid daughter cells. Meiosis 2:  Separates the chromatids producing two daughter cells and each has twenty-three chromosomes.
  9. 9. Prophase 1 and 2 Prophase 1: Chromosomes become visible. Combine to form tetrads.  Contain two pairs of chromosomes. Cross over at points.  Genetic material Prophase 2: From telophase to prophase 2 without interphase. Nuclear envelope is dissolved and spindle is set up.
  10. 10. Metaphase 1 and 2 Metaphase 1: Trends are arranged across the center by the kinetochores. Metaphase 2: Chromosomes move into the center. There are two chromosomes. Chromatids split off.
  11. 11. Anaphase 1 and 2 Anaphase 1: Chromatids holding the chromosomes together loosens. Homologous chromatids are separated into separate poles. Anaphase 2: Kinetochores moves towards the poles. Splits the sister chromatids.
  12. 12. Telophase 1 and 2 Telophase 1: Chromosomes are moved into opposite poles. Nuclear envelope reforms. Spindle is broken down. Telophase 2: Chromatids concentrate in the poles and nuclear envelope is reformed and the spindle is dissolved again. Cells divide  Leaves four haploid cells

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